Pump.



PATENTBD MAY 21, 1907. P. G. HOBART.

, PUMP.

APPLICATION FILED AUG. 4, 1906,

U NITED sTA ns PATENT FFICE.

F ANKLIN e. HOBART, OF BELOIT, WISOONSIN, ASSIGNOR TO FAlRBANKS, MORSE & co, OF CHICAGO, ILLINOIS, A CORPORATION OFILLINOIS.

PUMP.

Specification of Letters Patent. I

Patented May 21, 190?.

Application filed Ansugt 4, 1906. Serial No. 329,218.

a citizen of the United States of America, re-

siding at Beloit, in'the county of Rook and State of Wisconsin, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being'had therein to the accompanying drawings. 1

My invention relates to new and useful'iinprovements in pumps and especially 1 to pum s arranged for mechanical operation but vrfliic maybe desired to be operated manua y. I

- With explosive engines arranged to pump their fuel, it is usually necessary to prime the engine before it can be started, and this must be done either by a hand pump or other auxiliary means.- V

I The object of my invention is to arrange the engine pump so that it may be operated by hand, if desired, independently of the crank pin or other mechanical means which I. cannot beusually operated except by turn scribed claims.

ing over the en ine. The means by which I have attained t 's object, and which may be applied .to any pump designed for any purpose without departing from the scope of my Invention will be more fully hereinafter deand particularly set forth in the In the drawings,*Figure "1 shows an end elevation of 'thepump and links, and Fig.2 shows a side elevation of the' samewith the plunger depressed as in manual operation.

1 is the plunger of the pump 2, and 3 is the crank pin of the crank 4 to which the plunger is usually connected by a straight link (not shown). My device is arranged in place of this straight link and comprises a link 5 journaled on the crank pinand a lever f6 pivoted on the .plunger'by means of a pivot pin 7.

The link.5 is provided with. a laterally projecting to which isatt'ached one end of a yieldingi membeI ;9",-' preferably a coiled spring. .he other'en'd of the s ring is securediin the aperture 10in the lin or lever 6 for aipurpose to be hereinafter described,

The link orlever 6 ispreferably arranged to extend transversely -to the line of movement of the plunger and one end engages between 'the furoations 12 of the laterally projecting free end 13 of the link 5 and is iulcruined in said furcations on a pin 14L The coiled spring and the fulcrum pin-14 are arranged on opposite sides of the pivot pin 7'so that the tension of said spring normally holds the J shoulder 15 on the link or lever 6 in contact with the shoulder 16 on the link 5.

The free end 17 of the link or lever 6 is preferably slightly curved, as shown in Fig.

2, for hand actuation and the operation of the device is as follows: The plunger 1 being pivoted to the lever 6 between the spring and the fulcrum has less leverage than the spring, and the spring is formed with a sufficient tension to normally hold the links folded with the shoulders 15 and .16 contacting. The

crank pin, which I shall call the mechanical actuating means for the pump, may thus opcrate the same, and when said mechanical actuating means is not in motion the pump may be operated by hand by means of the connections with said link and lever for normally holding said link and lever folded on their common pivot into contact with each meansfor overcoming the tension or said resilient means and for operating said ph linger independently of said first-mentioned means.

3; The combination with a pump and a plunger, therefor, of means for actuating said 5 plunger, a link pivotallp connected to said means, a lever pivotaly attached tosaid lunger and having its end fulcrumed on said iink. and a-resilient member for yieldingly holding said link and said lever in fixed relation to each other, for the purpose described. T0 In testimony whereofl aifix my signature in presence of two witnesses. v

- FRANKLIN G. HOBART. Witnesses: 1

W. A. Goss, C. J. MIT HELL. 

